Q25 of 96 Page 157

Someone is asked to take a number from 1 to 100. The probability that it is a prime, is

Total numbers of outcomes = 100

So, the prime numbers between 1 to 100are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 56, 61, 67, 71, 73, 79, 83, 89 and 97.


∴ Total number of possible outcomes = 25


∴ Required probability = 13/50

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